Device for producing vibrations.



PATENTED MAR. 19 1907.

J. VAN T. DANIELS. nnvws FOR rnonncme VIBRATIONS.

APPLICATION FILED APR. 30. 1806.

' wow 3 Hz NORRIS PETERS co., wnsmucnm o c JAY vAN TUYL DANIELS, orLONDON, ENGLAND.

DEVICE FOR PRODUCING VIBRA'T'I'O'NS;

Specification of Letters Patent.

Patented March 1, 196

Application filed April so, 1906'. Serial No. 314,573.

To all whom it may concern:

Be it known that I, JAY VAN TUYL DAN- IELS, a citizen of the UnitedStates of America, residing at Temple Chambers, Temple avenue, London,E. (3., England, have invented certain new and useful Improvements inDevices for Producin Vibrations, Of which the following is a specication.

This invention relates to devices for producing vibrations for massageand like purposes, the object being to provide a simple and inexpensivedevice which will produce the required vibrations and permit of the latter being regulated or varied in degree.

The invention consists in mounting a weight upon one end of a pivotedlever and adapting the other end to be rapidly oscillated by anysuitable means, the lever being preferably influenced by an adjustablespring and the weight being also adjustable on the lever.

The accompanying drawings illustrate two I forms of vibrating deviceaccording to the invention, Figures 1 and 2 being, respectively, anelevation and sectional plan of one form, and Fig. 3 an elevation ofanother form.

In carrying out the invention according to one mode, as in theapplication to a hand-operated device and as illustrated in Figs. 1 and2, a handle a is fitted with a fork comprising two plates 6, spacedapart and having a toothed or serrated wheel 0 freely mounted betweenthem, near the handle, and a lever d pivoted between them at the outerend. The outer arm of the lever is screwtl1readed, and a weight e, suchas a metal ball, is screwed onto the same and fixed in any adjustedposition by a back nut f or the like. The inner arm of the lever d ispreferably bent to conform somewhat to the periphery of the serratedwheel 0, and it terminates in a small roller g. A flat plate spring hprojects from the boss i of the lever (1, near the pivot, and abutsagainst an adjusting-screw 7c. The spring it tends to throw or returnthe end of the lever fitted with the roller 9 against the toothed orserrated periphery of the wheel 0 when it rebounds therefrom as thewheel is rotated. The wheel is rotated by a suitable crank-handle Z andthe weighted lever d vibrated, the intensity of the vibrations beingvaried by adjusting either the weight e or the spring h.

Any other means*such as an electric motor, for example-may be employedto drive the wheel 0.

The vibrations set up may be transmitted to the patient in the usualmanner by a rigid attachment to the frame of the machine, such as theterminal, (indicated at m.) V

In another mode of carrying out the invention as illustrated in Fig. 3the inner end of the lever d is forked or slotted, as at n, and aneccentric or cam 0 is adapted to engage therein, the latter beingmounted on a shaft 1), fitted with a fly-wheel q and rapidly rotatedeither direct by a handle -l or through gearing.

Having now described my invention, What I claim as new, and desire tosecure by Let- A lever. pivoted on said frame, a weight on said lever,means for rapidly oscillating said lever and means for transmitting thevibrations.

4. An apparatus for producing vibrations comprising a frame, a hand-gripthereon, a lever pivoted on said frame, a weight on said lever, meansfor rapidly oscillating said lever, a handle for operating saidoscillating means and means for transmitting the vibrations.

5. An apparatus for producing vibrations comprising a frame, a hand-gripthereon, a

lever pivoted on said frame, a weight on one end of the lever,hand-operated means for oscillating the lever, and means fortransmitting said vibrations.

6. comprising a frame, a lever'pivoted thereon, a Weight on one end ofthe lever, a serrated wheel adapted to engage the outer end of saidlever and means attached to the frame for transmitting the vibrations.

7. An apparatus for producing vibrations comprising a frame, a hand-gripthereon, a lever pivoted in said frame, a weight on one end of saidlever, a roller on the other end, a serrated wheel engaging said roller,a handle for rotating said wheel and means for transmitting thevibrations.

8. An apparatus for producing vibrations comprising a frame, a hand-gripthereon, a

An apparatus for producing vibrations lever pivoted in said frame, aweight on one In testimony whereof I have signed my end of said lever, aroller on the other end, a name to this specification 1n the presence ofserrated wheel engaging said roller, a handle two subscribing witnesses.

for rotating said wheel, a spring on said lever JAY VAN TUYL DANIELS. 5and an adjusting-screw on the frame ngag- Witnesses:

ing therewith for the purpose of adjusting the LILY F. MCCREA,

intensity of the vibrations. LAURA W. JorrNsoN.

